The most cost-effective rangefinder you can find on the market to provide you reliable performance for golfing, hunting, bowhunting, and other professional application. Both models have slope functions. The slope switch is for tournament legal.Provide high-precision distance measurement. Integrates latest functions such as continuous range readings, ARC (angle range compensation), Pin-Seeking and Flagpole-Locking Vibration (Vibrate when the flagpole is locked), and Speed MeasuringMeasuring range from 5 to 650 yards, with +/- 1m high accuracy and 6x magnification. The flagpole locking function supports a distance up to 150 yards (Flagpole only) and 250 yards (Aim the flag when it's unfolded). Our rangefinder can meet most user’s needsFully multi-coated optics lenses effectively reduce reflected light and increase the transmission of light giving you a brighter clear image. The diopter is adjustable for precise focus on displayTOURNAMENT LEGAL: The "650y with slope switch" version features a slope switch that can let you turn off the slope function anytime you want, making your tournament legal. We are confident in our product and will provide a 1-year warranty. If you meet any quality issue with our product, we’ll directly send a new one or a full refund is optional (Except second-hand product).